Wagon-axle cutter



(No'Mdel.) 5

L A P. L. & J. M. ELLIS.

WAGON AXLE GUTTER.

10,261,692 Patented July 25, 1882.

a I UNITED STATES] APATENT OFFICE.

FREDERICK L. ELLIS AND JAMES M. ELLIS, OF` MILLDALE, ASSIGNORS TO J. B.SAVAGE, OF SOUTHINGTON, CONNECTICUT.

' WAGON-AXLE CUTTER.

SPECIFICATION forming part of Letters Patent No. 261,692, dated July 25,1882.

Application filed September 8, 1881.

To all whom it may concern Be it known that we, FREDERICK L. ELLIS and JAMES M. ELLIS, of Milldale, in the county ot' Hartford and State ofConnecticut, have invented certain new and useful Improvements inMachines for Dressing Wagon-Axles, of which the following is aspecification.

Our invention relates to vimprovements in machines for dressing the armsof wagon'axles, in which a revolving cutter-head is combined withuniversal centering-jaws; andthe object of our improvement is to morereadily and perfectly adjust the cutter-head concentrically' axle'arm,and therebyinsurea snug fit. j Prior machines of a differentconstruction have been made for doing the same work.

placed, first, a scroll-disk, c; second, a thicker circular plate, d,having a rearwardly-extending hub, E, and the front of which plate d isprovided with radial slots; and, third, univerf sal jaws e, fittedwithin the radial slots in the plate d, and having teeth on their frontfaces which engage the thread of the scroll-disk c after the manner ofan ordinary universal chuck.

An annular plate, F, is secured by screws to the head D, to hold theparte together in such (No model.)

manner that the head D may revolve upon the plate d.

In order to make thejaws work out andin, afterO the manner of anordinary universal chuck, it is necessary to make the scrolldisk revolvewith the head while the jaws and plate d are stationary, or vice versa.We therefore make oneor'more notches in the edge of disk c, and providea little slide,f, having a handle, g, which slide can be forced. intoone ot the notches and lock the disk to the head D, so as to insure itsmovementtherewith. The friction of the disk within thel head may besufficient for this purpose 5 but in order to'v revolve the head withoutmoving the jaws out or in, it is necessary that the disk shall bedetachable from the head, because if the jaws do not move while theheadis in motion the head must rotate without moving the disk. The jawsare so formed that when they are fitted in position and engage thethread of the scrolldisk their inner ends are a uniform distance fromthe axis of the head at all'V times, as in ordinary universal chucks,whereby said jaws are what may be termed universal jaws. The rear end ofthc huh is provided with setscrews h.

In the drawings the machine is represented in proper position upon theaxle-arm for'dressing the shoulder at the outer end. j

In order to use the machine, it is rst placed upon the axlearm G and thedisk c locked to the head by means ot the slidef. The hub E and plate dare held stationary while the head D is revolved, or vice versa, untilthe jaws c slide f is then disengaged from the disk, and the head may berotated independently of the disk, set-screws, and jaws. The chisel maybe adjusted to gradually cut the axle-arm, as desired, while the chiseland head are revolved around it. To cut the inner shoulder it is 2 esioeonly necessary to put the machine upon the l sal jaws for adjusting thecutter-head conoewn- 1o axle-arm with the end which carries the cuttertrieally upon the axle-arm, substantially as defaoing said innershoulder-that is, facing the scribed, and for the purpose specified.

opposite direction from that in which it is repy FREDERICK L ELLISresented in the drawing.

We claim as our invention- JAMES M' ELLIS' The combination of therevolving cutter- Witnesses: head, having the tool-post mounted thereonEDWIN G. LEWIS,

' and made adjustable radially, and the univer- CHARLES HITCHCOCK.

